Page 53 - NSU Supermax Owner's Manual

Fitting Tyres Attaching a Sidecar
is a very simple matter. The sidecar bracket is fitted to
Once you have' grasped the knack, the job of removing the bottom of the frame. By means of ball connections,
the "Max" can be quickly and conveniently converted
and refitting the low-pressure wired-on tyres mounted
into a sidecar machine and back into a solo.
on well-base rims as employed in the "Max" is sim­ To ensure easy steering and minimum tyre wear, the
plicity itself. The secret of easy tyre removal and refitting combination must be adjusted for toe-in and lean. There­
is to press the wired edge right down into the well at fore, when fitting a sidecar for the first time remember
one point with the tyre wholly deflated; this will loosen the the following points: - The sidecar wheel should point
in slightly (1" to 11fa") (25-30 mm) towards the front
point diametrically opposite, so that it can be levered wheel. Measurements should be taken by means of a
over the edge of the rim. Using torce is very dangerous straight edge which, when placed against the sidecar
- the steel wire in the cover edge may be rent in the wheel, must not be parallel with another straight edge
process, which would wreck the tyre beyond repair. placed against the wheels of the machine, but must
"toe-in" towards the front wheel.
Moreover, the machine should have a lean of 5/8" to
3/4" (15-20 mm). In other words, with the sidecar empty,
the machine must lean this amount outwards, away from
the sidecar. This allows the combination to run straight
ahead at the most frequent cruising speed of aboul
37 m. p. h. on level or slightly cambered roads with the
hands taken off the handlebars. If the machine pulls. to­
wards the sidecar, increase the lean; if it pulls away
from the sidecar, reduce it.
The sidecar wh'eel also should be given some lean 3/8"
to 5/8" (10 to 15 mm). If the sidecar has a floating axle,
this amount should be measured with the sidecar loaded.
For sidecar work, a 14-tooth chain sprocket should be
fitted in place of the 16-tooth sprocket.

50 lean lean
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